Astronomy Quiz II

What is the horizontal parallax of the moon?

• 58"

Perigee falls on ---------

• March 21

• July 3

• January 3

• January 21

Apogee falls on ---------

• March 21

• July 3

• January 3

• January 21

The third law of Kepler is also known as the --------- law

• Harmonic law

• Law of Gravitation
• Law of Ellipses
• Law of Orbits

Due to Geocentric parallax

• Azimuth is affected

• Azimuth is unaffected

• altitude is decreased

• altitude is unaffected

Every planet describes -------- orbit around the sun

• an elliptical
• a circular
• a square
• a triangular

True/ False: The areal velocity of a planet is constant

• True
• False

Perigee and apogee are together called ------

• periapsis
• apsides
• apoapsis
• orbital nodes

True/false: Force on the planet is towards the sun

• false
• true

The force on any planet varies inversely as the --------- from the sun

• square of its distance

• cube of its distance

• distance